diff --git a/src/MeoAsstGui/Helper/AsstProxy.cs b/src/MeoAsstGui/Helper/AsstProxy.cs
index 4d51b1975e..1550f83c9a 100644
--- a/src/MeoAsstGui/Helper/AsstProxy.cs
+++ b/src/MeoAsstGui/Helper/AsstProxy.cs
@@ -732,6 +732,7 @@ namespace MeoAsstGui
                             {
                                 all_drops += $" (+{addQuantity})";
                             }
+
                             all_drops += "\n";
                         }
 
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyActionHandler.cs b/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyActionHandler.cs
index 1d412a9a52..63e578fc61 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyActionHandler.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyActionHandler.cs
@@ -1,4 +1,17 @@
-namespace MeoAsstGui.MaaHotKeys
+// <copyright file="IMaaHotKeyActionHandler.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+namespace MeoAsstGui.MaaHotKeys
 {
     public interface IMaaHotKeyActionHandler
     {
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyManager.cs b/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyManager.cs
index 78abde3f16..221e5bb910 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyManager.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/IMaaHotKeyManager.cs
@@ -1,4 +1,17 @@
-using GlobalHotKey;
+// <copyright file="IMaaHotKeyManager.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using GlobalHotKey;
 
 namespace MeoAsstGui.MaaHotKeys
 {
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKey.cs b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKey.cs
index 8bb8fdca5d..72e46ade1a 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKey.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKey.cs
@@ -1,4 +1,17 @@
-using System.Text;
+// <copyright file="MaaHotKey.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using System.Text;
 using System.Windows.Input;
 using GlobalHotKey;
 
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyAction.cs b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyAction.cs
index 6cb00ee5bc..4b8459cf25 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyAction.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyAction.cs
@@ -1,4 +1,17 @@
-using System;
+// <copyright file="MaaHotKeyAction.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using System;
 
 namespace MeoAsstGui.MaaHotKeys
 {
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyActionHandler.cs b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyActionHandler.cs
index 2152658bf4..e518b1640b 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyActionHandler.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyActionHandler.cs
@@ -1,4 +1,17 @@
-using System;
+// <copyright file="MaaHotKeyActionHandler.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using System;
 using System.Windows;
 using StyletIoC;
 
diff --git a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyManager.cs b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyManager.cs
index abe67fc533..1383e89b5a 100644
--- a/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyManager.cs
+++ b/src/MeoAsstGui/Helper/MaaHotKeys/MaaHotKeyManager.cs
@@ -1,4 +1,17 @@
-using System;
+// <copyright file="MaaHotKeyManager.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Windows.Input;
diff --git a/src/MeoAsstGui/UserControl/HotKeyEditorUserControl.xaml.cs b/src/MeoAsstGui/UserControl/HotKeyEditorUserControl.xaml.cs
index 77aa097729..df267a7912 100644
--- a/src/MeoAsstGui/UserControl/HotKeyEditorUserControl.xaml.cs
+++ b/src/MeoAsstGui/UserControl/HotKeyEditorUserControl.xaml.cs
@@ -1,4 +1,17 @@
-using System.Windows;
+// <copyright file="HotKeyEditorUserControl.xaml.cs" company="MaaAssistantArknights">
+// MeoAsstGui - A part of the MeoAssistantArknights project
+// Copyright (C) 2021 MistEO and Contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY
+// </copyright>
+
+using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Input;
 using MeoAsstGui.MaaHotKeys;
diff --git a/src/MeoAsstGui/ViewModels/VersionUpdateViewModel.cs b/src/MeoAsstGui/ViewModels/VersionUpdateViewModel.cs
index 5de5b66b46..0be826cd0e 100644
--- a/src/MeoAsstGui/ViewModels/VersionUpdateViewModel.cs
+++ b/src/MeoAsstGui/ViewModels/VersionUpdateViewModel.cs
@@ -672,6 +672,7 @@ namespace MeoAsstGui
                     fileStream.Write(byteArray, 0, byteArraySize);
                     byteArraySize = responseStream.Read(byteArray, 0, byteArray.Length);
                 }
+
                 success = true;
             }
             catch (Exception info)